数字调制有（）三种基本方式。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30263' and id < 2448160 and id<>'2448160' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30263' and id > 2448160 and id<>'2448160' order by id asc limit 5